diff --git a/requirements.txt b/requirements.txt
index 5d74301..8e009a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ mxnet==1.3.0
 matplotlib==2.0.2
 tensorflow-gpu==1.8.0
 h5py==2.8.0
-Pillow==4.2.1
+Pillow==8.1.1
 scikit-learn==0.19.2
 scipy==1.1.0
 hyperopt==0.1.1